From 0b6df110b3d0c12562011fcd032cfb6ff16b6d56 Mon Sep 17 00:00:00 2001 From: Viswas G Date: Wed, 18 Oct 2017 11:39:14 +0530 Subject: scsi: pm80xx: panic on ncq error cleaning up the read log. when there's an error in 'ncq mode' the host has to read the ncq error log (10h) to clear the error state. however, the ccb that is setup for doing this doesn't setup the ccb so that the previous state is cleared. if the ccb was previously used for an IO n_elems is set and pm8001_ccb_task_free() treats this as the signal to go free a scatter-gather list (that's already been freed). Signed-off-by: Deepak Ukey Signed-off-by: Viswas G Acked-by: Jack Wang Signed-off-by: Martin K. Petersen --- drivers/scsi/pm8001/pm80xx_hwi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/scsi/pm8001') diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index f6df11a7c2d5..42f0405601ad 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -1489,6 +1489,7 @@ static void pm80xx_send_read_log(struct pm8001_hba_info *pm8001_ha, ccb->device = pm8001_ha_dev; ccb->ccb_tag = ccb_tag; ccb->task = task; + ccb->n_elem = 0; pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG; pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG; -- cgit v1.2.3-55-g7522